Microchip Technology Inc

Best Accuracy (1-Φ, Shunt, CT)

Function Product Family
Analog MCP3911 (Single Phase)
MCP3903 (3-Phase*)
Microcontroller PIC24F04KAXXX Family
PIC24F08KLXXX Family
PIC24/dsPIC33 Family

*3-phase connection requires changes in system design, not depicted here

Less than 0.2% error rate with dynamic range 8000:1

  • Better than Class 0.2 measurement (based on IEC62053) using CT
  • Better than 0.2% error using a shunt resistor
  • 24-bit dual AFE with integrated PGAs for high accuracy measurements
  • Fast calibration solution available
  • Low overhead software allows sharing MCU with system responsibilities
Tabs / Utility Metering Solutions
Reference Designs

Utility Metering

Title Part Number Devices Supported
MCP6L02 & PIC18F65J90 1-Phase Energy Meter ARD00370 MCP6L02, MCP1754S, MCP1703, MCP2200, 24FC256, PIC18F65J90
MCP3911 & PIC18F85K90 1-Phase Energy Meter ARD00385 MCP3911, MCP1703, MCP2200, MCP6001, PIC18F85K90
MCP39F521 Power Meter ADM00686 MCP39F521, MCP1754S, MCP2221, MCP9700
MCP39F511 Power Meter ADM00667 MCP39F511, MCP2221, MCP6021, MCP9700
MCP39F11N Power Meter ADM00706 MCP39F511N, MCP1754S, MCP2221
MCP39F501 Power Meter ARD00455 MCP39F501, MCP1754S, MCP2200, MCP9700
MCP3905A Energy Meter MCP3905RD-PM1 MCP3905A, MCP3906A

Metering Video Channel